I must have read 25 threads on recommended gauges. So, have mercy upon me, and tell me if $ for $ this is what I should go with -- or if for a few more dollars I could go to another, far better level:
1. Pillar - Summit Racing - $80
http://www.summitracing.com/parts/atm-12214
2. Air Fuel - Cobalt - $300
http://www.summitracing.com/parts/atm-6178
3. Boost - Cobalt - $90
http://www.summitracing.com/parts/atm-6107